Bibliographic Citation
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| Title | Method of recovering oil using sacrificial agent and viscosifier |
| Creator/Author | Murphy, C.L. |
| Publication Date | 1969 Nov 18 |
| OSTI Identifier | OSTI ID: 7301181 |
| Report Number(s) | US 3478823 |
| Resource Type | Patent |
| Subject | 020300 -- Petroleum-- Drilling & Production; ;OIL WELLS-- WATERFLOODING; ENHANCED RECOVERY;PETROLEUM;POLYAMIDES |
| Related Subject | ENERGY SOURCES;FLUID INJECTION;FOSSIL FUELS;FUELS;ORGANIC COMPOUNDS;ORGANIC POLYMERS;POLYMERS;WELLS |
| Description/Abstract | Sweep efficiency can be improved and channeling toward the production well reduced by injection of a sacrificial agent either prior to injection of the viscosifier or dissolved within the polymer slug.^The viscosifier is usually a partially hydrolyzed polyacrylamide and it is preceded or accompanied by a sacrificial agent, usually sodium carbonate or sodium tripolyphosphate.^The sacrificial agent is preferentially adsorbed adjacent to the injection well thereby reducing adsorption of the viscosifier which, in turn, decreases the darcy velocity of the flooding medium and increases injectivity. |
| Country of Publication | United States |
| Language | English |
| Format | Pages: v |
| Rights | Mobil Oil Corp. |
| System Entry Date | 2001 May 13 |
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Last Updated: 02/15/2009